1. Arrow, K.J. and S. Karlin, 1958, “Smooth Production Plans” in Studies in the Mathematical Theory of Inventory and Production, Stanford University Press, pp. 70–85.
2. Blazewicz, J., K.H. Ecker, E. Pesch, G. Schmidt and J. Weglarz, 1996, Scheduling Computer and Manufacturing Processes, Springer-Verlag.
3. Bollen, N.P.B., 1999, “Real Options and Product Life Cycles”, Management Science, 45(5), pp. 670–684.
4. Bollen, N.P.B., 1999, “Real Options and Product Life Cycles”, Management Science, 45(5), pp. 670–684. Bryson, A.E. and J.Y-C. Ho, 1975, Applied Optimal Control, Hemisphere Publishing Corporation, Washington. Burden, R.L. and J.D. Fares, 1989, Numerical Analysis, PWS-KENT, Boston.
5. Collatz, L., 1986, Differential Equations: an Introduction with Applications, Wiley, Chichester.